WASHINGTON — The grand jury investigating alleged collusion between Russia and Donald Trump’s presidential campaign has sent a witness a subpoena seeking all documents involving the president and a host of his closest advisers, according to a copy of the subpoena reviewed by NBC News.

According to the subpoena, which was sent to a witness by special counsel Robert Mueller, investigators want emails, text messages, work papers, telephone logs and other documents going back to Nov. 1, 2015, 4½ months after Trump launched his campaign.

The witness shared details of the subpoena on condition of anonymity. The news site Axios reported Sunday that a subpoena was sent to a witness last month.

NBC News reported last week that Mueller’s team is asking pointed questions about whether Trump knew about hacked emails from Hillary Clinton’s campaign before the public found out. The subpoena indicates that Mueller may be focused not just on what Trump campaign aides…

Vote.net is an online forum that allows students to share their ideas on current politics and enter an open political discussion. By using this online site, students can find interesting articles about current political events and then can write their own. Join the Vote.net staff. Become a contributor by emailing us with your area of interest.